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Digestive System
N/A
36
Anatomy
Undergraduate 2
05/03/2009

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Cards

Term
Ingestion
Definition
Taking food in the digestive system usually through the mouth
Term
Movement
Definition
Includes swallowing and peristalis (also known as propulsion)
Term
Mechanical Digestion
Definition
The physical breaking up of the food into smaller pieces to increase the surface area and complements chemical digestion
Term
Chemical Digestion
Definition
The process of hydrolysis by enzymes to form molecules small enough to be absorbed by cell membranes
Term

adsorption


Definition
the process where the monomeric forms of the food substance are taken up by the circulatory and lymphatic system
Term
defication
Definition
process where the indigestible substances are eliminated from the body
Term
Gastrointestinal Tract
Definition
aka alimentary canal - a long shallow tube that extends from the mouth, pharynx, esophagus, stomach, small and large intestine, rectum, and anus- the area which will receive the enzymes produced by the accessory organs and use them to digest food.
Term
Accessory Organs
Definition
most aid in digestion by producing secretions for chemical digestion
Term
mucosa
Definition
the innermost layer of the alimentary canal with produces most of the secretions and where absorption takes place.
Term
submucosa
Definition
binds mucosa to the muscularis and contains blood vessels and nerves.
Term
Muscularis
Definition
used to move and mechanically digest food
Term
serosa
Definition
outmost layer of alimentary canal that forms peritoneum
Term
perioteneum
Definition
large serous membrane that coats the GI tract. Protects organs and cuts down friction
Term
Parietal Peritoneum
Definition
on the walls of the abdominal cavity
Term
Visceral Peritoneum
Definition
on the organs of the abdominal cavity
Term
mesentery
Definition
connects the small intestine to the posterior abdominal wall
Term
falciform ligament
Definition
connects the liver to the abdominal wall
Term
greater omentum
Definition
connects the stomach to the transverse colon
Term
lesser omentum
Definition
connects the stomach, duodenum and liver
Term
mesocolon
Definition
connects the large intestine to the posterior abdominal wall
Term
retroperitoneal
Definition
outside of the peritoneal - encloses the pancreas and kidneys
Term
mouth
Definition
aka oral or buccal cavity
Term
labia
Definition
lips
Term
vestibule
Definition
space between labia and gingivae
Term
cheeks
Definition
muscular structures that form the lateral walls of the ora cavity
Term
hard palate
Definition
the front roof of the mouth
Term
soft palate
Definition
back roof of the mouth
Term
uvula
Definition
a free edge projecting downward - closes off the nasopharynx during swallowing
Term
palatine tonsils
Definition
group of lymphatic tissue on the sides of the oral cavity
Term
fundus
Definition
a dome shaped section tucked beneath the diaphram
Term
cardia
Definition
near the heart
Term
pyloric
Definition
portion inferior to the body of the stomach
Term
sphincters
Definition
circular smooth muscle
Term
rugae
Definition
folds in the stomach mucosa
Term
pancreatic duct
Definition
main duct for carrying secretions to the intestine
Term
pancreatic amylase
Definition
carbohydrates to disaccharides
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